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The SRX_400 can
be tailored to your specific tracking needs, thanks to the availability
of a number of different firmware programs developed by Lotek especially
for this receiver/datalogger. In addition to the standard programs listed
here, additional firmware configurations are also available for special
application requirements. Please contact us
to inquire.
Also, be sure to
download our summary sheet of SRX_400
firmware configurations.
STANDARD
PROGRAMS
- W9 EVENT_LOG
- W9 EVENT_LOG datalogging program for automatic detection and recording
of non-coded, "beeper" type transmitters. Originally developed for
studies of migrating salmon, the program automatically scans user
defined frequency tables. When a signal is found, the program temporarily
suspends scanning to collect and measure the duration of pulse intervals.
An automatic noise reduction strategy is employed. Valid "events"
of any frequency within the user selectable reporting period are recorded.
An SRX_400 receiver with W9 Firmware affords the researcher the ability
to record over 20,000 records. With data compression, multiple events can be stored in each of the 20,000+ records. Collected data may be downloaded
in ASCII format via RS-232 serial port to any MS-DOS compatible computer.
- W16 CODE_LOG
- W16 CODE_LOG is designed to identify pulse transmitters having a
coded time signature. It supports Lotek's propriety coding scheme.
In normal operation, a table of frequencies is scanned and the presence
of signals of the specified type is recorded in a large (512K or 1M
byte) non-volatile memory. An SRX_400 receiver configured with W16
firmware supports the ASP_8 multiple antenna switching as well as
the DSP_500 Digital Spectrum Processor with FAS_7 rapid antenna switching.
- W30 CODE_LOG
- W30 CODE_LOG datalogging firmware is used in coded system applications
and incorporates all of the key features of W16 firmware. In addition,
it offers researchers greater flexibility with respect to defining
group Events (a logged "event" includes the date, time,
frequency, pulse rate, signal strength and, where applicable, antenna).
This results in a corresponding increase in Event storage capability.
The Continuous Record feature allows a user to specify the duration
of each observation window during which data is logged. Consecutive
appearances of identical data i.e. same channel, code and antenna,
during a specified observation window, result in an averaging of related
data and signal strength for that window. Upon expiry, data is logged
and the observation window automatically resets. W30 can keep track
approximately 30,000 individual events during a single observation
window. Additional features include a filter that allows researchers
to suppress noise events that emulate legitimate transmitter signals,
as well as any signals from transmitters that may have been rejected,
or are coming from a dead animal in the monitored zone. W30 offers
the ability to upload/download frequencies to the receiver from a
computer. W30 also offers the user the option of viewing the screen
display in either acoustic or radio frequency mode format when used
in conjuction with our optional sonic upconverter. This versatility,
in combination with such features as "Echo Suppression", make the
SRX_400 W30 configuration ideal for use in marine applications, or
in situations where the receiver will serve dual use in acoustic and
radio environments.
- W21 EVENT_LOG
- W21 EVENT_LOG
firmware incorporates all of the features of W9 firmware, with many
application enhancements suited to more comprehensive studies, requiring
automated datalogging as well as sophisticated multiple antenna switching
capabilities. In addition, W21 affords the ability to designate transmitters
as sensors i.e. temperature. Further features include:
-
- 1 Mb of
non-volatile memory, with Event storage of approximately 30,000
records
- individual
gain settings for master and auxiliary antennas
- Adaptive
Gain Control, which enables the SRX_400 receiver to dynamically
adjust the gain of each of up to eight antennas at individual
frequencies, thereby optimizing reception of a signal relative
to current ambient noise conditions
- a scrolling
feature that facilitates viewing frequencies installed within
individual frequency tables
- frequency
upload/download from a computer
- high speed
data download, reducing data recovery time by 500 percent.
Scratchpad
- The Scratchpad is a field data entry feature installed in the SCAN
routine of most versions of SRX firmware. It allows the user to enter
two values (Mercator coordinates, environmental measurements or any
other numeric data) which are then stored along with date, time and
transmitter frequency. Storage allocation and dump facilities are
available from EVENT_LOG.
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